How do I find child controls under a specific container UIItem?

Assume a UI where there are multiple tab pages, each page has a zoom slider. How do I get the zoom slider of a particular named tab page ?

I've tinkered a bit and what worked was

get the window by name

get the tab page by tab header

then fall back to UI automation - tabPage.AutomationElement.FindAll or FindFirst with the right constraint/condition

Is there a more "white" way to get hold of child controls within a parent container/control ?

Also in some cases, the child controls are not accessible - UISpy shows them only in the raw / unfiltered view and not in the control view. e.g. A DataGridCell shows a certain value within a TextBlock. The UISpy control view ends at a custom control for
DataGridCell ; the raw view shows more children under it. Does White have a native way to get to the raw children ? I coded up an extension method that finds raw children but was wondering if I reinvented the wheel coz I couldn't find it.

Finally falling back to UI Automation meant that I lost out on the really nice White UIItem wrappers. I hacked it by doing something like

new Button(buttonAutomationElementSearchResult, NullActionListener)

It works but is it the right approach to cast from AutomationElement to specific UIItem?

So that's 3 questions in all... In summary - very impressed with this framework. Great work!!

On #1, I'm still not sure. A WPF tab control blows off everything other than the active tab contents.. so I guess that's why using the Window.Get<Button> would work (as long as you select the tab beforehand).

So I'll rephrase the question, given a specific parent UIItem derivation, how do I only search for elements under it. (i.e. subtree with parent as root).

e.g. if I have a list view using data templates, I'd have similar controls for each list view item. If I want to find a specific control in the template expansion of ListViewItem#4, how do I go about it ? I can get the ListViewItem for Item#4, but then how
do I search for a specific descendant ?